Cut-off socket.



N0. 808,656. PATENTED JAN. 2, 1906. D H HAYWOOD GUT-OFF SOCKET.

APPLICATION FILED MAY 11, 1905.

2 SHEETS-SHEET 1.

INVENTOR,

fir ATTORNEYS WITNESSES:

N0. 808,656. PATENTED JAN. 2,1906 D. H. HAYWOOD.

GUT-OPP SOCKET.

APPLICATION FILED MAY 11, 1905.

2 SHEETS-SHEET 2.

Fig?

- ATTORNEYS UNITED STATES PATENT OFFICE.

DANIEL HOWARD HAYWOOD, OF NEW YORK, N. Y., ASSIGNOR TO WILLIAM B.WADSWVORTH, OF PLAINFIELD, NEW JERSEY.

CUT-OFF SOCKET.

Specification of Letters Patent.

Patented Jan. 2, 1906.

Application filed May 11, 1905. Serial No. 260,031.

To all whom it may concern.-

Be it known that I, DANIEL HOWARD HAY- WOOD, a citizen of the UnitedStates of America, and a resident of the city, county, and

State of New York, have invented certain new and useful Improvements inCut-Ofi' Sockets, of which the following is a specification, referencebeing had to the accompanying drawings, forming a part thereof.

My invention relates to improvements in cut-ofi sockets of the characterdisclosed and claimed in a copending application by Olaf Saugstad, filedMarch 18, 1905, Serial No. 250,754. In such applicationa cut-off socketis shown and described adapted for the reception of a thermostaticregulator when used in connection with hot-water tanks. The cut-offsocket has a valve device by which communication can be opened or closedbetween the water in the tank and the interior of the socket in which iscontained the thermostatic portion of the regulator. By this means theregulator may be removed at will without it being necessary to firstdrain the tank and when replaced may be directly immersed in fluidcirculating through the tank.

The present invention includes means for automatically opening andclosing such communication upon insertion or withdrawal of theregulater, whereby the mere act of inserting the regulator will opencirculation from within the tank to within the socket and the mere actof removing the regulator will cause such circulation to cease. When theValve mechanism is thus automatically controlled, the danger of removingthe regulator without first turning off the water or of forgetting toturn on the water after the regulator has been inserted is entirelyeliminated, as will be well understood, and, further, no instructionswill be required to the workmen in removing and replacing the regulator,as all conditions are automatically taken care of.

My form of the device further lends itself to the multiplication ofports without much additional complication, whereby free circulationwhen the valve is open is insured and such free circulation insured inany position of the socket.

My invention further consists in certain novel details of constructionand combination of parts, as will be hereinafter more fully pointed out.

In order that my invention may be more fully understood, I will nowproceed to describe several forms of cut-off sockets embodying same andwill then point out the novel features in claims.

In the drawings, Figure 1 is a view in central longitudinal sectionthrough a cut-0E socket embodying my invention,showing same in positionin a tank and showing also in dotted lines a thermostatic regulatormounted therein. Fig. 2 is a View in central transverse section throughthe socket, the plane of section being taken substantially on the line 22 of Fig. 1. Fig. 3 is a view in central transverse section through thesocket, the plane of section being taken substantially on the line 3 3of Fig. 1. Fig. 4: is a fragmentary view in central longitudinalsection, showing a slightly-modified structure. Fig. 5 is an end view ofthe same. Fig. 6 is a fragmentary view in central longitudinal sectionof a further-modified structure.

Referring first of all to the form shown in Fig. 1, the socket comprisesa shell 1 and a tubular extension 2, closed at the end by a cap 3 orequivalent means. The shell is provided with a screw-threaded portion4:, by which it may be screwed into a correspondinginternally-screw-threaded opening in the wall of a tank, boiler, or thelike. 5 designates the tank, a portion of which is shown in thedrawings. At its outer end the shell 1 is provided with aninternally-screw-threaded portion 6, arranged to receive a thermostaticregulator 29, here shown in dotted lines as in operative position. Thelength of the shell portion 1 may vary as desired. It may be quiteshort, if preferred; but it is convenient to make it several inches inlength, because the tank is usually lagged with asbestos or othercovering, and in such case a socket so made brings the head of theregulator out to a convenient position beyond the lagging, as will bereadily understood. A valve-casing 7 is fitted to the outer end of thesocket-shell 1, being here shown as screwed into the screw-threadedportion 6 and having a flange 8, the end of which is accurately fittedto the shell by means of a ground joint 9 to prevent leakage. Betweenthe flange and the body of the socket-shell is formed an annular channel10, and connecting with this annular channel 10 are a series of ports orpassages 11, affording communication with the interior of the tank. Anannular valve 12 is fitted to a valve-seat 13, formed at the rear end ofthe valve-casing 7. The said valve opens toward the channels 11 andcloses in the opposite direction, whereby pressure of water within thetank will tend to keep the valve closed. A light spring 14 may be employed, if desired, to keep the valve normally in its seat. Anoperating-ring 15 is fitted to a suitable annular channel in thevalve-casing 7 and is connected with the valve 14: by a plurality ofstems 16, which pass freely through longitudinal openings 17. Theoperatingring 15 projects outwardly beyond the outer face 18 of thevalve-casing and in the path of the regulator to be inserted. When theregulator is inserted, it will engage the ring 15, and forcing sameinward toward the tank will open the valve 12, thereby openingcommunication from the tank through the ports or passages 11 to thelongitudinal opening 17. Transverse openings 19 allow communication fromthe openings 17 to the interior of the socket, whereby free circulationis established between the interior of the socket and the interior ofthe tank whenever thevalve l2is opened. Removal of the regulator willcause the valve 12 to automatically close, the pressure of the waterfrom the tank being sufiicient to effect this directly the abutmentwhich engages the ring 15 is removed. The spring 14:, if employed, willfurther assist in this movement.

Preferably I provide a plurality (three or more) of the channels 11around the socketbody, as shown in Fig. 3, because when so arranged theangular position of the socket with respect to the tank is immaterial?l.a, it is immaterial in screwing the socket into place as to at whatpoint angularly the socket is finally brought to rest.

In Figs. Land 5 I have shown a slight modification in which a pluralityof independent valve devices 20 are secured'in position around thecentral opening of the socket, the valvestems 21 protruding therefrom inthe path of the regulator. Each valve device is preferably screwed intoan independent recess 22, communicating with a corresponding port orpassage 11. A plurality of valve devices are preferably employed,conveniently three, as shown, so as to insure circulation in anyposition of the socket.

In Fig. 6 a still further modification is shown, in which the socketbody or shell is formed in two parts 23 24, the portion 23 constitutingthe valve-casing. In this instance I have shown a plurality of valves 25fitted to corresponding valve-seats 26 and with their stems 27 engagingan operating-ring 28, arranged in the path of the regulator when inoperative position.

In all forms of the device it will be seen that the following principleremains the same: The screwing of the regulator into place automaticallyoperates the valve mechanism to open communication between the interiorof the tank and the interior of the socket,whereby the thermostaticportion of the regulator is immersed in the tank fluid as fully andcompletely as if the socket were not present, while the unscrewing ofthe regulator to remove same causes the valve mechanism to close, so asto out 011 such communication, whereby escape of water other than thesmall quantity locked up in the socket itself will be prevented. It willalso be seen that the device is inexpensive to manufacture andcomprising but few parts will not be liable to get out of order.

What I claim is 1. In a cut-off socket, the combination with a socketmember arranged to removably support a regulator, of means forcontrolling admission of fluid to the socket, operated by the insertionand removal of the regulator.

2. Acut-offsocketcomprisingasocket member having means for securing sameto a tank, and means for removably receiving a regulator therein, andmeans operated by the insertion and removal of the regulator forcontrolling admission of fluid to the socket from the tank.

3. A cut-off socket having a portion adapted to enter a tank, andprovided with means for securing it to the tank, said socket adapted andarranged to removably support a thermostatic device, and provided withmeans operated by the insertion and removal of the thermostatic devicefor controlling admission to the socket of fluid from the tank.

1. A cut-off socket comprising a shell adapted to be secured to the wallof a tank, and a tube adapted to extend inward Within the tank, saidsocket adapted and arranged to removably support a regulator, andprovided with means operated by the insertion and removal of theregulator for controlling admission to the socket of fluid from thetank.

5. A cut-off socket comprising ashell adapted to be secured to the wallof a tank, and a tube adapted to extend therefrom inward within the tankwhen in position therein, said shell having an internally-screw-threadedportion adapted for engagement with the correspondingly-screwthreadedportion of the temperature-regulator; and means operated by theinsertion and removal of the temperature-regulator for controllingadmission to the socket of fluid from the tank.

6. The combination with a tank and a thermostatic device extendingtherein, of a cut-ofi? socket surrounding the portion of thethermostatic device in the tank, and means operated by the insertion andremoval of the thermostatic device for controlling admission of fluid tothe socket from the tank.

7. The combination with a tank of a socket extending within same, athermostatic device removably fitted to said socket, and means op- IIOin said casing arranged to control admission of fluid to within thesocket, and an operating member for said valve arranged to be engaged bysaid thermostatic device while it is being inserted.

10. In a cut-oiI socket, the combination with a socket member or shellarranged to remov- 2O ably support a-regulator, said shell provided witha plurality of circulating-passages, of valve mechanism controlling saidpassages, and operated by the insertion and removal of the saidregulator.

DANIEL HOWARD HAYWOOD.

Witnesses:

W. WADsWoR'rH, JOSEPH WADSWORTH.

